IN2012DN01255A - - Google Patents

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Publication number
IN2012DN01255A
IN2012DN01255A IN1255DEN2012A IN2012DN01255A IN 2012DN01255 A IN2012DN01255 A IN 2012DN01255A IN 1255DEN2012 A IN1255DEN2012 A IN 1255DEN2012A IN 2012DN01255 A IN2012DN01255 A IN 2012DN01255A
Authority
IN
India
Prior art keywords
valve
flow
intermediate tube
tube
valve body
Prior art date
Application number
Inventor
Walter Bruno
Lillo Gianfranco De
Original Assignee
Sistemi Sospensioni Spa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sistemi Sospensioni Spa filed Critical Sistemi Sospensioni Spa
Publication of IN2012DN01255A publication Critical patent/IN2012DN01255A/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/3207—Constructional features
    • F16F9/3235—Constructional features of cylinders
    • F16F9/325—Constructional features of cylinders for attachment of valve units

Abstract

In a damping-adjustable shock-absorber (10) comprising a pressure tube (12), an outer tube (20), an intermediate tube (22) and a flow-control active valve (28) for controlling the flow of a damping fluid to/from the intermediate tube (22), a flow-control passive valve (32) is interposed between the intermediate tube (22) and the active valve (28). The passive valve (32) comprises a valve body (34, 36) in fluid communication on the one side (64) with the intermediate tube (22) and on the other side (82) with the active valve (28), a movable member (48) slidable in a chamber (46) of the valve body (34, 36), a spring (54) acting on the movable member (48), and metering means (56, 64, 68, 72, 76) for metering the flow of the fluid from the intermediate tube (22) to the active valve (28) through the valve body (34, 36). The metering means (56, 64, 68, 72, 76) are configured in such a manner as to allow to obtain a pressure-flow rate characteristic curve with a first ascending section and a second constant, or even descending, section. (Figure 4)
IN1255DEN2012 2009-09-03 2010-09-02 IN2012DN01255A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTO2009A000681A IT1395557B1 (en) 2009-09-03 2009-09-03 PASSIVE FLOW CONTROL VALVE AND SHOCK ABSORBER WITH ADJUSTABLE DAMPING INCLUDING SUCH VALVE
PCT/IB2010/053951 WO2011027314A1 (en) 2009-09-03 2010-09-02 Flow-control passive valve and damping-adjustable shock-absorber comprising the same

Publications (1)

Publication Number Publication Date
IN2012DN01255A true IN2012DN01255A (en) 2015-05-15

Family

ID=42103927

Family Applications (1)

Application Number Title Priority Date Filing Date
IN1255DEN2012 IN2012DN01255A (en) 2009-09-03 2010-09-02

Country Status (7)

Country Link
US (1) US8875852B2 (en)
EP (1) EP2473756B1 (en)
CN (1) CN102549296B (en)
BR (1) BR112012004654B1 (en)
IN (1) IN2012DN01255A (en)
IT (1) IT1395557B1 (en)
WO (1) WO2011027314A1 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1401610B1 (en) 2010-08-04 2013-07-26 Sistemi Sospensioni Spa PISTON FOR SHOCK ABSORBER WITH VARIABLE DAMPING, PARTICULARLY FOR SUSPENSION OF VEHICLE, PROVIDED WITH FOUR PASSIVE VALVES OF FLOW CONTROL AND OF A FLOW RETURN ELECTROVALVE.
CA2890996C (en) 2012-11-07 2023-03-21 Polaris Industries Inc. Vehicle having suspension with continuous damping control
US9205717B2 (en) 2012-11-07 2015-12-08 Polaris Industries Inc. Vehicle having suspension with continuous damping control
JP5683634B2 (en) 2012-11-28 2015-03-11 株式会社ショーワ Pressure shock absorber
BR112017008825A2 (en) 2014-10-31 2018-03-27 Polaris Inc method and power steering system for a vehicle, methods for controlling a power steering system of a vehicle and for controlling a vehicle, throttle replacement method for a recreational vehicle, and, vehicle.
CN113183701A (en) 2015-05-15 2021-07-30 北极星工业有限公司 Multipurpose vehicle
CA3043481C (en) 2016-11-18 2022-07-26 Polaris Industries Inc. Vehicle having adjustable suspension
IT201700006900A1 (en) * 2017-01-23 2018-07-23 Sistemi Sospensioni Spa Hydraulic linear actuator with locking system designed to block the actuator's compression movement.
US10406884B2 (en) 2017-06-09 2019-09-10 Polaris Industries Inc. Adjustable vehicle suspension system
US10946736B2 (en) 2018-06-05 2021-03-16 Polaris Industries Inc. All-terrain vehicle
DE102018115177B3 (en) * 2018-06-25 2019-07-11 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Valve block for active suspension damping and method for mounting a shock absorber for active suspension damping
US10987987B2 (en) 2018-11-21 2021-04-27 Polaris Industries Inc. Vehicle having adjustable compression and rebound damping
KR20210015535A (en) * 2019-08-02 2021-02-10 현대자동차주식회사 Shock absorber structure and mobility device incuding the same
MX2022015902A (en) 2020-07-17 2023-01-24 Polaris Inc Adjustable suspensions and vehicle operation for off-road recreational vehicles.

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2732039A (en) * 1952-11-20 1956-01-24 Shock absorber control valve
DE3719113C1 (en) * 1987-06-06 1988-08-25 Boge Ag Adjustable vibration damper
DE4024920C2 (en) * 1990-08-06 1996-02-01 Fichtel & Sachs Ag Vibration damper
DE4114305A1 (en) * 1990-12-08 1992-06-11 Fichtel & Sachs Ag SHUT-OFF VALVE DEVICE
DE4104110A1 (en) * 1991-02-11 1992-08-13 Fichtel & Sachs Ag PRE-CONTROLLED DAMPING VALVE WITH VIBRATION DAMPER-RIGHT CHARACTERISTICS
KR100204944B1 (en) * 1995-12-20 1999-06-15 다가야 레이지 Adjustable damping force hydrauric shock absorber
JP4288430B2 (en) * 1995-12-26 2009-07-01 株式会社日立製作所 Damping force adjustable hydraulic shock absorber
US5730261A (en) * 1996-01-11 1998-03-24 General Motors Corporation Damper control valve
DE19624898C2 (en) * 1996-06-21 1998-07-02 Mannesmann Sachs Ag Damping valve with variable damping force
JP3887760B2 (en) * 1996-08-09 2007-02-28 株式会社日立製作所 Damping force adjustable hydraulic shock absorber
JP4147502B2 (en) * 1998-06-26 2008-09-10 株式会社日立製作所 Damping force adjustable hydraulic shock absorber
JP4967091B2 (en) * 2007-04-19 2012-07-04 日立オートモティブシステムズ株式会社 Fluid pressure buffer

Also Published As

Publication number Publication date
US20120168268A1 (en) 2012-07-05
IT1395557B1 (en) 2012-09-28
US8875852B2 (en) 2014-11-04
WO2011027314A1 (en) 2011-03-10
BR112012004654B1 (en) 2021-08-03
EP2473756A1 (en) 2012-07-11
ITTO20090681A1 (en) 2011-03-04
CN102549296B (en) 2014-11-19
BR112012004654A2 (en) 2020-08-25
EP2473756B1 (en) 2016-12-21
CN102549296A (en) 2012-07-04

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